GB2246691A

GB2246691A - Casting reel

Info

Publication number: GB2246691A
Application number: GB9116929A
Authority: GB
Inventors: Jun Sato
Original assignee: Shimano Inc
Current assignee: Shimano Inc
Priority date: 1990-08-07
Filing date: 1991-08-06
Publication date: 1992-02-12
Anticipated expiration: 2011-08-06
Also published as: GB9116929D0; DE4126191C2; KR920003848A; KR950008072B1; GB2246691B; US5799892A; DE4126191A1

Abstract

A casting reel, such as a baitcasting reel, includes right and left cases 1, 2 constituting a reel body AO, and a level wind mechanism R and a spool 6 disposed between the right and left cases 1, 2. The reel body AO has a substantially circular configuration as seen in a direction along an axis of the spool 6. The axis of the spool 6 is offset from a center of the reel body AO away from a fishing rod when the reel is attached to the fishing rod. The level wind mechanism R is disposed on or adjacent a horizontal plane extending through the center of the reel body AO. <IMAGE>

Description

1 -1CASTING REEL This invention relates to casting reels. and more

particularly to a baltcasting reel having a level wind mechanism and a spool arranged between right and left cases forming a reel body.

This type of reel is mounted on an upper surface of a fishing rod through a mounting foot attached to the reel body. For facility of handling at a casting time. the angler holds the reel and rod in his or her left hand (the hand not used for turning the handle) in such a way as to cover the reel with the palm (herinafter referred to as palming). With this in view, the baitcasting reel is designed zo have a relatively small vertical dimension.

On the other hand, it is desirable for this type of reel to have a change speed system having a high chailge gear ratio b(-:ttwe.ciL the handle and sp,-)oi. It is also necessary, to transmit drive to the level wind mechanism. Thus. there is a limit to reduction in the vertical dimension of the reel body. To reduce the vertical dimension without lowering th.-change gear ratio and while securing a transmission system for the -2level wind mechanism. the reel body must have an increased fore and aft dimension. resulting in a configuration difficult to handle.

An object of the present invention is to provide an improved casting reel which facilitates palming without causing the above-noted inconvenience.

The above object is fulfilled, according to the present invention, by a casting reel comprising right and left cases constituting a reel body, and -a level wind mechanism and a spool disposed between the right and left cases, wherein the reel body has a substantially circular configuration as seen in a direction along an axis of the spool. the axis of the spool being offset from a center of the configuration away from a fishing rod when the reel is attached 'to the fishing rod in a horizontal posture. and the level wind mechanism being disposed on or adjacent a horizontal plane extending through the center of the configuraticin of the reel body.

Th i s castir)'-, re.eJ may be constructed as shown in Fig. 3. for example. This construc,cion allows the mounting foot 14 to be displaced upwar(i by an amount of upward displacement of the spool 6 compared with the spool having an axis coinciding with the center P i J 1 1 i i 1 i i i 1 1 -3of the configuration of the reel body AO as seen in the direction along the axis Q of the spool. Consequently. the reel upwardly projects a reduced amount when attached to a fishing rod. The spool 6 is displaced upward and the level wind mechanism is disposed on or adjacent the horizontal plane L. Thus, in plan view. the level wind mechanism R may be located at a farthermost position from the spool 6 with no mutual interference.

Since, according to the present invention, the reel body has a substantially circular configuration' as seen in a direction along an axis of the spool, the reel upwardly projects a reduced amount from the fishing rod and the level wind mechanism R is disposed in an appropriate position. This is achieved without enlarging the reel body, particularly in the fore and aft direction.

Thus. the present invention provides an improved casting reel which facilitates palming. without lowering the line ta.keup gear ratio. while allowing Ole system for the level wind ine-chanism to]--)cec)ri-,trlictf-cl in a '7ittin,- wa,.

Other features and advantages oL' thepresent invention will he apparent fronj he f c) 11 ow i n,' description of the preferred embodimeri.11-s.

The invention will be described by way of example with reference to the accompanying drawings, in which:- Fig. 1 is a plan view in cross section of-a reel in accordance with one embodiment of the invention, Fig. 2 is a side view of a clutch operating system of the reel.

Fig. 3 is a side view in vertical section of the reel, Fig. 4 is a sectional view of a brake control system of the reel, Fig. 5 is a side view of a brake plate of the reel, Fig. 6 is a side view of a transmission system for driving a level wind mechanism of the reel, Fig. 7 is a side view of a clicking sound producing system of the reel, Fig. 8 is a sectional view of an integral unit of the reel, Fig. 9 is a rear view of the reel, Fig. 10 is a sectional view of the integral unit after a die casting process, Fig. 11 is a sectional view of the integral unit after a cutting process, Fig. 12 is a sectional view of a reel, in accordance with another embodiment of the invention, Fig. 13 is a sectional plan view of a reel in accordance with a further embodiment of the invention, Fig. 14 is a side view of a screw shaft mounting 1 1 1 i i i 1 i 1 1 1 i 1 i i I 1 i i I i 1 1 e k structure of the reel shown in Fig. 13. and view FiC,>. 15 is an enlarged sectional plan showing the screw shaft mounting structure of the reel shown in Fig. 13.

25) Baitcasting reels according to embodiments of present invention will be described in detail with reference to the drawings.

Figs. 1 through 9 show a baitcasting reel in one embodiment of the invention. The reel comprises a reel body AO having a left case 1 and a right case 2. The reel body AO has a level wind mechanism R mounted in a front position thereof and including a screw shaft 3. a guide rod 4 and a line guide 5. Further, the reel body AO has a spool 6 mounted centrally thereof and a clu4k-ch controller 7 mounted in a rear position. The right. case 2 supports a handle 8, a drag controller 9. a cast controller 10 and a brake controller 11.

I ji t1hi --s ret 1. Pa r ts of the I ef t ca --,e I a rid r i ght case 2. and a thumb rest 12 and a pair of lower frames 13 interconnecting the two cases are tlormed into an integral unit A (Fig. 10) by aluminum die casting.

To form the reel body AO, a lid B (Fig. 11) acting as part of the right case 2 is attached to the integral unit A. The reel body 1 1 1 1 1 1 1 j AO has a circular configuration in side view. The axis Q of the spool 6 is offset a predetermined amount upward from the center P of the circular configuration. The screw shaft 3 is disposed on a horizontal plane L level with the center P.

A mounting foot 14 is disposed between the pair of lower frames 13. The foot 14 has a vertical distance H not exceeding 40mm from the center P, with the reel body AO having an outside diameter T within a range of 45 to 70mm. The reel having such dimensions facilitates palming at a casting time.

As shown in Fig. 10. the integral unit A is formed by die casting. Further, as shown in Fig. 11, the left case 1 has a component mounting space S which is formed by boring with a cutting tool 15 inserted through spool inserting openings 1H and 2H.

To save as much time and trouble as possible in carrying out the boring process. an inside wall 1A of the outer wall is formed flat with no projection. A bearing receiving recess 1B has a depth about 1/4 to 3/4 of Itht- thiclkittss (if the bearing, itie case 1 is cut such that an outside surface and an inside surface define substantially concentric circles and de-Cine a relatively small wall thickness in a. sectional view seen in the direction along the axis Q of the spool 6. Further. inward surfaces (opposed to the spoo 1) of 1 i j i 1 i i 1 1 1 i i 1 1 1 1 i 1 1 i 1 walls 1S and 2S between which the level wind mechanism r? is mounted. as well as inside peripheral surfaces of the openings 1H and 2H, are finished by cutting also.

Outside surfaces of the integral unit A and lid B are finished to form no difference in level, and treated with a bright alumite.

As shown in Figs. 1 and 2. the handle 8 and drag controller 9 are mounted on a handle shaft 16 extending from the right case 1. The handle shaft 16 supports a drag mechanism D and a ratchet wheel 17 mounted on an inward end portion thereof. A spool shaft 18 rotatable with the spool 6 supports a clutch sleeve 19 slidably mounted thereon and a pin 20 fixed to the spool shaft 18 to be engageable with the clutch sleeve 19. The clutch sleeve 19 and pin 20 constitute a clutch mechanism C. The clutch sleeve 19 has an input gear 1.9A meshed with an output gear of the drag mechanism D. whereby torque from the handle 8 is transmitted to the spool 6 through the drag mechanism D and clutch mechanism C.

The spool shaft, 18 is supported at. upposite ends thereof by bearings 22. The cast controller 10 i screwed to the right case 2 for adjusting a frictiona forep applied to the righthand end of the spool shaft 18. The ratchet wheel 17 has teeth!7A engageable with a pawl 2-1 pivotable on an a:.:is 23 to prevent.

-8backward turning of the handle 8.

As shown in Fig. 2. the clutch sleeve 19 is engaged with a shifter 26 slidably supported,on a pair of support shafts 25. A rotary cam 27 is rotatably mounted coaxially with the axis Q of the spool 6. This rotary cam 27 defines a pair of cam surfaces 27A for sliding the shifter 26. The rotary cam 27 has an engaging pin 27B engaged with a link element 28 operable through contact with a control Pin 7A of the clutch controller 7.

Compression springs 29 are mounted on the support shafts 25 to urge the shifter 26 and clutch mechanism C to a clutch engaging position. A toggle spring 30 acts on the rotary cam 27 to maintain the rotary cam 27 in a position to engage or a position to disengage the, clutch mechanism C. A further toggle spring 31 acts on a. return arm 31 to switch the arm 31 to a position in which an end thereof interferes with the ratchet wheel 17 when the clutch mechanism C is set to the disengaged position. When disengaging the clutch mectianism C-'. the clut.ch controller -, is depressed to place the link element 28 into conta.i:-- with a guide 33. Then the link element 28 moves describing an aretiate loctis while in contact with the guide 33. to rotate the rotary cam 27. As a result. the clutch mechanism C is disengaged through pressure contact i 1 i 1 1 i i i i i 1 i 1 1 i 1 1 i i 1 1 1 -9with the cam surfaces 27A. When engaging the clutch mechanism C. the handle 8 is turned in a direction to take up the fishing line. This causes a tooth 17A of the ratchet wheel 17 to push the return arm 32. whereby the rotary cam 27 is returned. Consequently, the shifter 26 moves under the urging force of compression springs 29 to the position to engage the clutch mechanism C.

As shown in Fig. 9, the clutch controller 7 is supported to be slidable only relative to the wall 2S of the right case 2. The control pin 7A extends through an arcuate guide bore 2A so that the clutch controller 7 describes an arcuate locus about the center P of the reel body AO in side view. The clutch controller 7 defines an arcuate perforation 7B to receive a connectin,,-,. frame 3-11 as shown in FiCg. 3.

It is necessary wht-.ri assemL)Iiric the reel. to 2A in above To 28P -j^ormed at a of' the pin 71A to a 1 11 insert the control pin 7A into the guide bore such a way that the pin 7A is correctly placed an engaging portion 28A of the link element 28 t;-A C i 1 i t ate- this operation. t Ill e includes a restricting projectinn lower end thereof to stop insertion position bf-low thp link element 2,', '.

1 1,1r, e 1 emen t As shown in Figs. 4 and 5. the ri-111t case 2 has a ma,,,-nt.t ty.pf- brake mechanism mounted therein. whose _10braking force is adjustable by the. brake controller 11. The brake mechanism includes a plate 36 disposed adjacent a side face of the spool 6 and -having a plurality of magnets 35. a slide element 37 for supporting the plate 36 to be movable toward and away from the spool 6, a cam 39 connected to the brake controller 11 through a control shaft 38 for contacting a contact portion 37A of the slide element 37 to determine a position of the slide element 37, and a compression spring 40 acting as a resilient element for urging the'slide element 37 away from the spool 6. A ball type detente mechanism is provided between the brake controller 11 and a support 41 secured to the reel body AO. This detente mechanism includes a. compression spring 42. a ball 43 urged by the spring 42. and a plurality of bores 44A formed in a disk 44 rotatable with the brake controller 11. The ball 43 is selectively engageable with the bores 44A to maintain the brake controller 11 in a control position.

WiTh this bra.k(- in(:-chanism. the clo-ser the ma(srnets 35 are to the sidf-- face of the spool 6. the greater eddy currents are generated at a castin,,:,, time in the spool 6 forme(i of an aluminum alloy to produce the greater brakin,:1, force.

The right case. 2 may be. opened by removing screws 1 1 1 i 1 i 1 1 i 1 1 i 1 1 1 2 S -1145 (Fig. 1) and lid B. As shown in Figs. 1, 6 and 7. the spool shaft 18 carries. fixed to a left end region thereof. extending into the left case 1, an element having a first gear 46 for producing a clicking sound and a second gear 47 for transmitting drive to the level wind mechanism R. A clicking piece 51 is disposed adjacent the first gear 46, which is urged by a ring spring 48 defining a slit and is movable by a control knob 49 and a control shaft 50 into and out of engagement with the first gear 46. Further. a transmission system is provided which includes a first and a second intermediate gears 52 for transmitting the drive from the second gear 47 to an input gear 3A mounted on the screw shaft 3. The transmission system and clicking system are mounted in the left case 11 and supported by two plates 53 and 54. respectively.

The outward plate is called herein a, first plate 53 and the inward plate a second plate 54. The first plate 53 is fixed to the outer wall by a pair of stiz)p(,i-tint-1 the spool shaft 18. Y,Iatf- 54 js f' i -ie(i t o t i ons of the f i rs + p 1 ate 3 by (,I- 5:5. Th(-- control shaft;:50 e,:ten(l<,, sl-,ts and 5.1P rIefined in tit,:, first and second plates 'S and 54, respectively. lie Iii-st and second a pa i r throti,cl,ti -12 intermediate gears 51 and 52 are supported onshafts 56 sandwiched between the first and second plates 53 and 54. The ring spring 48 is fixed to the second plate 54 through a bracket 57 by a pair of screws 55.

The present invention is applicable also to a reel having a D-shaped configuration in side view.

with an outer part cut off.

Further, the present invention is applicable to a reel as shown in Fig. 12. This reel includes a left case 1 formed of part of an integral unit A and a lid B2 to be openable outwardly. and a magnet type brake mechanism M mounted in the left case 1. The brake mechanism M includes a turn knob 60 defining a cam 60A, a rod 61.extendib.le and retractable thpough contact with the cam 60A. and a plate 63 having magnets 62.

A level wind mechanism P of a reel in another embodiment of the present invention will be described next.

As shown in Fig. 13. a guide. rod 4 is loosely i'itte-d ai. one- enJ 'Liicrec)z' in a Imearing bore dci'ined in a left ease 1. and at the other end, in a bearing bore defined in a right case 2. Right and left bearin...s 66A and 66B are mounted in the opposilke ends of the guide rod 4. and a screw shal't extends between the t.wo bearings 66A and 66B. An extreme end of the screw 7 4 -13shaft 3 projecting from the right bearing 66A carries acting as a rotary input element for an input. gear 6'1 receiving drive. The input gear 67 is interlocked with an output gear 68 mounted on a handle shaft 16 to drive the screw shaft 3.

As shown in Fig. 14. the portion of the right bearing 66A projecting from the guide rod 4 into an interior spa.ce of the right case 2 has an approximately D-shaped section. A lower bent portion 69A of a clamp 69 is placed in engagement of a cutout position of the D- shaped section to restrict movement of the right bearing 66A axially of the screw shaft 3. The fastening plate 69 is secured to an inside wall of the right case 2 by two screws 70. The clamp 69 formed separately. from the right bearing 66A has the function only to restrict the movement of the bearing 66A axially cif th(--- screw shaft. 3.

As shown in Fig. 13. the left case 1 is formed of an integral unit B1 and a lid B2 to be openable. The left case 1 ha.s a turn knob 71 mounted therein. A n c t l,' is wl-ii.c-li j i-ic.1t.idr-s rod 72' extendible and retractable through contact wi th a (-.am 71A formed on the knob 71. and a Plate -13 rtiagnets 74.

1 body Since. the bearing 66A is fitl,-tl in the ree AO. the bearinA, 66A as integrated witl'-. the reel body AO, bears a load acting on the screw shaft 3. The clamp 69 acts only to limit the movement of the bearing 66A axially of the screw shaft 3.

The above construction is capable of receiving, by means of the bearings. the load acting on the screw shaft, in addition to the advantages of the foregoing embodiment. The clamp attached to the reel body performs only the function to limit the movement of the bearing axially of the screw shaft. Consequently, the clamp is not directly subjected to the load (or bending moment) acting on the;crew shaft. This provides the advantage that the clamp may be attached to the reel body by means of simple parts such as bolts.

The foregoing embodiment may be modified as follows:

(a) The rotary input element 67, may be. a pulley instead of a gear.

(b) The bearing 66A may be a rolling bearing or a slide bearing.

(c) A-s in Fig. JS. the maj. be I'ormed -,i' an ela.stic material and cantilevered from the inside face of the right case 2. Then. the right bearing 66A is attachable and detachable iltilizin,-, elastic deformation of a free end o- the clamp 69.

The right, bearing 66A mounted in posit-Ion is retained i 1 1 I i 1 1 I 1 1 1, 1 -15there by an elastic pressing force imparted from the free end of the clamp 69.

(d) When bolting the lid B to the integral unit A, part of the bolts may be used as the clamp 69 to contact and retain the right bearing 66A. Alternatively, part of the lid B may be used to retain the right bearing 66A in position.

Like references are used to identify like components throughout the foregoing embodiments and modifications.

Claims

1. A casting reel, such as a baitcasting reel., comprising:

right and left cases constituting a reel body.

and a level wind mechanism and a spool disposed between the right and left cases, wherein said reel body has a substantially circular configuration as seen in a direction along an axis of said spool. said axis of said spool being offset from a center of said configuration away from a fishing rod when the reel is attached to the fishing rod in a horizontal posture. and said level wind mechanism being disposed on or adjacent a horizontal plane extending through the center of the configuration of said reel body.

2. A casting reel as claimed in claim 1. wherein parts of one of said cases and the other case and components interconnecting said cases are formed into an integral unit by aluminuril die casting.

3. A casti-nIg, reel as claimed in claim 2, wherein said reel body is formed of said integral unit and a lid acting as part of said other case.

1 1 i R i i i 1 1 1 1 1 i i 1 1 i 1 1 1 i i i 1 i c.

-17 4. A casting reel as claimed in claim 3. wherein said integral unit and said lid are finished to form no difference in level on outer surfaces thereof, and treated with a bright alumite. 5. A casting reel as claimed in any one of claims 1 to 4, wherein said reel body has an outside diameter 45 to 70mm. and a vertical distance between a mounting foot and saidcenter of the configuration of said reel body is 40mm or less.

6. A casting reel as claimed in any one of claims 2 to 5, wherein said other case contains a magnet type brake mechanism having a braking force adjustable by a brake controller.

casting reel as claimed in claim 6, wherein said magnet type brake mechanism includes a plate disposed adjacent a side face of said spool and having a plurality of magnets. a slide element for stipporting said plate to be movable toward and away from said spool. a cain connected tc, said brake controller through a control shaft for contacting a contact portion of said slide element to determine a position of said slide element. and a compression spring for urging said slide element away. from said spool.

8. A casting reel as claimed in any one of claims 2 to 5, wherein said one of the cases contains a magnet type brake mechanism including a turn knob defining a cam. a rod extendible and retractable through contact with said cam. and a plate attached to said rod and having magnets.

9. A casting reel as claimed in any preceding claim, whekein said level wind mechanism includes a rotatable screw shaft having one end thereof supported by said reel body, and the other end carrying a rotatable input element and supported by a bearing mounted in said reel body. and clamp means attached to said reel body for contacting one end of said bearing to prevent movement of said bearing axially of said screw shaft.

10. A casting reel as claimed in claim 9. wherein said clamp means is formed of an elastic material and cantilevered t'rc)iii an inside face of s;.tid other case. said earing being attachable and dp-taci;ible titilizing elastic deformation of a free end of said clamp. said bearing mounted in position being retained there by an elastic pressing force imparted from the free end of said clamp.

11. A casting reel substantially as herein described with reference to Figs. 1 to 11 or Fig. 12 or Figs.13 to 15 of the accompanying drawings.

Published 1992 at The Patent Office, Concept House. Cardiff Road, Newport Gwent NP9 111H. Further copies may be obtained from Sales Branch. Unit 6. Nine Mile Point, Cwmfelinfach. Cross Keys, Newport. NPI. 7HZ. Printed by Multiplex techniques lid, St Mary Cray, Kent.

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